679663284 has 12 divisors (see below), whose sum is σ = 1585881024. Its totient is φ = 226554424.

The previous prime is 679663277. The next prime is 679663297. The reversal of 679663284 is 482366976.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28319292 + ... + 28319315.

It is an arithmetic number, because the mean of its divisors is an integer number (132156752).

Almost surely, 2^679663284 is an apocalyptic number.

It is an amenable number.

679663284 is an abundant number, since it is smaller than the sum of its proper divisors (906217740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679663284 is a wasteful number, since it uses less digits than its factorization.

679663284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56638614 (or 56638612 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The square root of 679663284 is about 26070.3525867987. The cubic root of 679663284 is about 879.2207650855.

The spelling of 679663284 in words is "six hundred seventy-nine million, six hundred sixty-three thousand, two hundred eighty-four".